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Article #53595

#53595

From: Doug Fowley
Date: Wed, 02 Oct 1991 07:03

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1217 bytes

To whom it may concern,

This is a question, not a bug report, but I don't know how to address my
question...

I'm using GCC under the LynxOS operating system on a 386-based PC/AT.  The
compiler was distributed by Lynx.  Apparently, they made the compiler with
"STRICT_ALIGNMENT".

I'm trying to write a device driver for a memory mapped I/O card.  The card's
registers are not aligned on the correct byte boundaries.  Thus, I can't
write a C struct to overlay the card's memory.  I need an option to the
compiler that overrides the "STRICT_ALIGNMENT" and packs structure members in
memory.  I've seen this option with other C compilers, but can't find one for
GCC.

Is there such an option?

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Message-ID: <9110021503.AA07843@tdc.salem.ge.com>

Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!cis.ohio-state.edu!tdc.salem.ge.COM!fowley

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From: fowley@tdc.salem.ge.COM (Doug Fowley)
Newsgroups: gnu.gcc.help
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Message-ID: <9110021503.AA07843@tdc.salem.ge.com>
Date: 2 Oct 91 07:03:41 GMT
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